Interflask Leakproof Travel Mug by Insulated Premium Vacuum Flask That Keeps Your Coffee Hot for Hours. Dishwasher Safe up to 50&deg;C KEEP YOUR DRINKS HOT OR COLD FOR HOURS  Whether youre commuting on the train, cycling to work or traveling with your friends, our travel mugs are designed for preserving the temperature and freshness of your coffee or cold drink for several hours. In fact, Interflask will keep your drink so hot that we recommend checking the temperature of your liquid before drinking directly out of the flask. NO SPILLS OR LEAKS  Interflask mugs are silicone sealed and completely leakproof to ensure the safety of your belongings, and are equipped with a safety lock as well for your peace of mind. To ensure that there are absolutely no spills, please remember to wipe the drinking spout dry before placing it inside a bag or with other belongings. CONVENIENT ONE-CLICK OPERATION  Our travel mugs are constructed in an easy, one-hand operation style. To open the lid, simply hold your mug in one hand, release the safety lock and press the button with your thumb. SLIM AND COOL TO THE TOUCH  No more burning your hands! The double-wall insulated stainless steel bottle keeps your liquids hot whilst the exterior remains at room temperature. The slim body shape also enables Interflask to fit in most car and bike drink holders. MONEY-BACK GUARANTEE  We are so confident in our Interflask Travel Mug that well offer you a 100% satisfaction guarantee. If you don't like it, just send it back and we'll refund your money - no questions asked!